1.
Chemistry
; 29(11): e202203501, 2023 Feb 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-36546826
RESUMO
Transparent, dark orange Ba[Au(N3 )4 ]2 â 4 H2 O was synthesized by reaction of Ba(N3 )2 and AuCl3 or HAuCl4 in aqueous solution. The novel barium tetraazidoaurate(III) tetrahydrate crystallizes in the monoclinic space groupâ Cc (no.â 9) with a=1813.68(17)â pm, b=1737.95(11)â pm, c=682.04(8)â pm and ß=108.849(4)°. The predominant structural features of Ba[Au(N3 )4 ]2 â 4 H2 O are two crystallographically independent discrete anions [Au(N3 )4 ]- with gold in a tetragonal planar coordination by nitrogen. Vibrational spectra show good agreement with those of other azidoaurates(III). Upon drying, this salt was shown to be a highly explosive material.